On 5/22/2013 8:18 AM, Greg Smith wrote:
>
> They can easily hit that number. Or they can do this:
>
> Device: r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await svctm
> %util
> sdd 2702.80 19.40 19.67 0.16 14.91 273.68 71.74 0.37 100.00
> sdd 2707.60 13.00 19.53 0.10 14.78 276.61 90.34 0.37 100.00
>
> That's an Intel 710 being crushed by a random read database server
> workload, unable to deliver even 3000 IOPS / 20MB/s. I have hours of
> data like this from several servers.
This is interesting. Do you know what it is about the workload that
leads to the unusually low rps ?